Versatile Design: Create three different levels or cliffs in your aquarium or terrarium substrate with the 10-inch long by 2-inch wide long piece, 6-inch long by 1-inch wide medium piece, and 3.5-inch long by 2-inch wide short piece. Pet-Safe Materials: Made from high-quality, non-toxic plastic, ensuring a safe and healthy environment for your aquatic or reptile pets. Easy to Use: Simply place the pieces in your substrate and arrange it how you prefer to instantly add dimension and visual interest to your tank. Enhance Aesthetic Appeal: Mimic natural rock formations and landscapes, providing a more natural and stimulating environment for your pets. Durable and Long-lasting: Designed to withstand aquatic conditions and reptile habitats, ensuring long-term use and enjoyment. Transform your aquarium or terrarium into a mesmerizing landscape with the REEFSHAPE Aquarium or Terrarium Substrate Cliffs Combo Pack. Made in the USA from pet-safe, eco-friendly plastic, this pack includes three separate pieces designed to create stunning cliffs and depth in your aquatic or reptile environment.